Brian Higgins appears on episode 2 of the BBC series Secrets of the Pop Song, which explores the process of songwriting, following from pen and paper to first public performance. In this episode, Brian Higgins talks about how the chart single has changed over the last 50 years and reveals the process of writing Sugababes' "Round Round", the first number 1 single produced by Xenomania.

You can view all the Xenomania-related bits in the video above. If you're in the UK, you can watch the entire show on BBC iPlayer - it also includes appearances from Guy Chambers, Mark Ronson, Boy George, Neil Tennant, Lamont Dozier and Rich Harrison.

Xenomania is a songwriting and production house based in Kent, England. It was founded by songwriter and producer Brian Higgins.

Since 1996, Xenomania have written, produced and remixed tracks for a string of successful artists including Girls Aloud, Pet Shop Boys, Sugababes, Dannii and Kylie Minogue, Saint Etienne, Cher, Gabriella Cilmi and many others.